Daylight fluoroscope



May 18, 1943 E. E. WILLIAMS DAYLIGHT FLUROSCOPE Filed Oct. 2, 1940 FIG.1.

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Patented May 1 8, 1943 UNITED STATES PATENT OFFICE 2,319,712 DAYLIGHTFwoaosoorn Edward- E. Williams, Bronx, N. Y.

Application October 2, 1940, Serial No. 359,459

2 Claims.

This invention relates to improvements in daylight fluoroscopes.

The primary object of my invention is the provision of apparatus bymeans of which an X-ray image depicted upon a fluorescent screen can betransmitted to any desired source, near or remote, and designated upon ascreen from which it may be photographed or viewed in ordinary light.

With present X-ray and fluoroscopic screen apparatus the image isdesignated upon the fluorescent screen and is generally viewed from adark room by an operator who becomes accustomed to the darkness of theroom after or minutes, so that the image can be properly viewed. With myimproved apparatus I am able to designate with X-ray equipment an imageupon a fluorescent screen, upon which an iconoscope of a televisiontransmitting set is directed, so that the image can be transmitted to aremotely positioned television receiving set; the kinescope thereofdesignating the image upon a viewing screen, from which it may bereadily seen under varying light conditions, and from which it may befilmed.

A further object of this invention is the provision of improvedapparatus for adjustably supporting a fluorescent X-ray receiving screenand its associated television transmitting apparatus.

Other objects and advantages of this invention will be apparent duringthe course of the following detailed description.

In the accompanying drawing, forming a part of this specification, andwherein similar reference characters designate corresponding partsthroughout the several views, I

Figure 1 is a view, partly diagrammatic and partly in section, showingthe associated apparatus of my improved invention.

Figure 2 is a, view taken substantially onv the line 22 of Figure 1,with the supporting stand of my improved apparatus in a differentlyadjusted position than that shown in Figure 1.

In the drawing, the letter A may generally designate an X-ray tube ofsuitable X-ray apparatus from which Roentgen rays are emitted forpassage through a body for transmission of an image upon a fluorescentscreen B. The latter is supported as a unit with television transmissionset C, operatively connected by means D (well known in the art) with atelevision receiving set E. The latter has associated therewith a glassscreen F, preferably a magnifying fluorescent lens of low power verythinly coated and allowing light to pass therethru and at the able base3la.

same time fluoresce' proper manner. Improved means G is provided forsupportin in an adjustable relation the unitary association of thescreen B and television transmitting set C. The transmitting et C is ofWell known constructio'fi, and need not be furthei'freferred to.

than to say that it has associated therewith, an iconoscope ll] facingthe image upon the findrescent screen B; a case I I supporting the sametherein, and detachably receiving also the flucrescent screen B. Thelatter is held upon the case by means of releasing clips I2.

The television receiving set E is likewise of well-known constructionand includes a kinescope. A suitable cabinet or casing l5 receives thetelevision receiving set E and supports thereupon a screen F detachablyheld in position by clips 16, similar to the fluorescent screen B. Thus,it is seen that the fluorescent screen 13 and television transmittingset C are associated as a unit, and likewise the television receivingset E comprises another remotely positioned unit. These television setsare operatively connected in conventional manner by the means D whichincludes a coaxial cable.

Referring to the means G, the same may be of any approved construction.However, it is preferably of a nature which permits of adjustment of thefluorescent screen and its television transmitting set C so as toproperly position it with respect to the body, the image of which is tobe designated upon the fluorescent screen. In case the transmitting setC does not have a unitary connection with the fluorescent screen B anadjustable mounting similar to the conventional fluorescent screen maybe provided.

The means G preferably consists of a supporting standard 30 mounted upona preferably port- An elongated supporting case 3| is rotatably mountedby means of a stub shaft 32 upon the standard 35); said stub shaft 32having an anti-friction bearing 34, and an adjustable step bearing 35,which cooperates in supporting the casing 3| vertically, horizontally,or at an acute angle to the vertical or horizontal. The casing 31 isprovided with rollers 40 and 4| at its ends, around which cables 42 and43 respectively are trained. The cables 42 and 43 are connected atadjacent ends by means of a counter weight ,44 and at their oppositeends support a member 45, having a tubular extension 41, upon which thefluorescent screen and television transmitting set unit is mounted. Thistubular portion 41 projects through a slot in the casing 3 I, so that itmay slide along said slot.

The casing ll of the fluorescent screen and television transmitting setunit has a stub extension 5| connected therewith terminating in a ball52 which is socketed at 53 in a rod or support 54 telescoped in the tube41.

With the above mounting of the fluorescent screen and televisiontransmitting set unit, it is possible thru the ball and socketconnection 5Z53 to angularly or forwardly position the screen. With thetelescopic tube connection 41-54 it is possible to forwardly andrearwardly move this unit with respect; to the-stand 3i. Set screws 60and 6| are provided for locking the ball and socket connection, and thetelescopic tube connection respectively. Similarly, a set screw or knob64 is provided for locking the stub shaft 32 against rotation at theanti-friction bearing means 34.

The receiving set and viewing screen unit may be mounted upon the top ofthe standard 30 or at any other approved location. The operation of thedevice will be apparent from the foregoing. It is possible tovertically, horizontally, or angularly position the casing 3|, so thatthe fluorescent screen and its associated television transmitting setmay be adjusted in any desired position, for purposes well known tothose skilled in the art.

The casing ll preferably has several lights therein, the circuittherefor including a rheostat 8| so that the intensity of illuminationmay be varied.

Various changes in the shape, size and arrangement of parts of theinvention may be made to those shown in the drawing Without departingfrom the spirit of the invention or scope of the claims.

I claim:

1. Apparatus for the transmission of X-ray images and the likecomprising a supporting base, a member rotatably mounted on thesupporting base, a fluorescent screen mounted for rotary movement withsaid member, and means for sliding said fluorescent screen across saidrotary member to either side of its axis of rotation.

2. Apparatus for the transmission of X-ray images and the likecomprising a fluorescent screen, a supporting base, and means mountingthe fluorescent screen on the supporting base for upright and transverseadjustment to suit the position of a subject to be reflected upon thescreen, and means independent of the aforesaid adjusting means tofurther adjust the screen universally.

EDWARD E. WILLIAMS.

